The Claim

Nitrate-depleted beetroot juice significantly increases plasma nitrate concentration in both young and older adults, indicating that non-nitrate components of beetroot juice influence nitrate metabolism or retention independent of dietary nitrate intake.

Source: Ageing modifies the oral microbiome, nitric oxide bioavailability and vascular responses to dietary nitrate supplementation.

What the research says

Challenges is higher

Challenge is ahead, but a single strong supporting study can change this.

Supports
0score
Challenges
76score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

Drinking beetroot juice with all nitrate removed still raises nitrate levels in the blood of young and older adults, showing that other compounds in beetroot juice affect how the body handles nitrate.

See the scientific wording

Nitrate-depleted beetroot juice (placebo) significantly increases plasma nitrate concentration in both young and older adults, suggesting that non-nitrate components of beetroot juice—such as phytochemicals—may influence nitrate metabolism or retention, independent of dietary nitrate intake.

Why this might work

When nitrate is consumed, it enters saliva and is converted to nitrite by specific bacteria in the mouth. These bacteria thrive when nitrate is present and outcompete other bacteria that would otherwise turn nitrate into ammonia. The nitrite then enters the bloodstream and is turned into nitric oxide, which relaxes blood vessels and lowers blood pressure.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Ageing modifies the oral microbiome, nitric oxide bioavailability and vascular responses to dietary nitrate supplementation.

    The study found that beetroot juice without nitrates didn’t raise nitrate levels in the blood — only the version with added nitrates did. So, the idea that other natural parts of beetroot boost nitrate levels isn’t supported.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.